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Help with C100 wiring.

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Old 08-09-2018, 08:52 PM
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Help with C100 wiring.

currently wiring up my ls carb swap. Have most of it figured out other than the A4 red wire and the G5 red wire. I am not completely sure about where they are supposed to go to. From what I read it says something about a power distribution block but I canít find that anywhere. Anything will help! Thanks
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Old 08-09-2018, 11:21 PM
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Re: Help with C100 wiring.

On a 91 GTA? G5 goes to the positive post on the starter with a fusible link. Powers the lights mostly. A4 goes to the same place on a different fusible link and powers damn near everything. If your diagram says "distribution block" you're probably looking at a TBI or 3.1L diagram, TPI cars don't have a block, they run everything to the starter. Pages 8A-10-2 8A-10-3, and 8A-10-4 are where you'll find those wires in the 91 Firebird manual.
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Old 08-10-2018, 02:53 PM
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Re: Help with C100 wiring.

C100 layout.
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Old 08-10-2018, 05:36 PM
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Re: Help with C100 wiring.

Yeah whoever made that diagram wanted it to be universal, or they just want to call the positive at the starter a dist block. Doesn't matter much, just on tpi cars everything runs off the starter and everything else uses a block by the battery.
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